c#JS调用

来源：互联网发布：贾斯汀比伯中国知乎编辑：程序博客网时间：2024/05/30 05:17
using MSScriptControl;using System;using System.Collections.Generic;using System.Reflection;using System.Text;using v8sharp;namespace Js调用{    class Program    {        static void Main(string[] args)        {                string reString = @"            function MessageBox(s)             {                 return 'Hellow ' + s;            }            ";            string MethodName = "MessageBox";            string para = "'bbs.msdn5.com'";            //请先引用 Interop.MSScriptControl.dll Framework4.0 引用 Interop.MSScriptControl_fr40            // string info =RunMethod(reString,para,MethodName); //Run            //string info = EvalMethod(reString, para, MethodName); //Eval            string info = V8Method(reString, para, MethodName); //V8            Console.WriteLine(info);            Console.ReadKey();        }        /// <summary>        /// 执行js V8方法        /// </summary>        /// <param name="reString">Js代码</param>        /// <param name="para">参数字符串(使用逗号分隔)</param>        /// <param name="MethodName">方法名称</param>        static string V8Method(string reString, string para, string MethodName)        {            V8Engine engine = V8Engine.Create();//创建V8对象            V8Script script = engine.Compile(reString);//编译            try            {                engine.Execute(script);//将编译的脚本加载到V8引擎中                string res = engine.Execute(string.Format("{0}({1})", MethodName, para)).ToString();//执行结果                return res;            }            catch (Exception ex)            {              return  ex.Message;//异常信息            }        }        /// <summary>        /// 执行js Eval方法        /// </summary>        /// <param name="reString">Js代码</param>        /// <param name="para">参数字符串(使用逗号分隔)</param>        /// <param name="MethodName">方法名称</param>       static  string EvalMethod(string reString, string para, string MethodName)        {            try            {                Type obj = Type.GetTypeFromProgID("ScriptControl");                if (obj == null) return "";                //使用默认构造函数创建对象实例                object ScriptControl = Activator.CreateInstance(obj);                // InvokeMember 设置属性                obj.InvokeMember("Language", BindingFlags.SetProperty, null, ScriptControl, new object[] { "JScript" });                obj.InvokeMember("AddCode", BindingFlags.InvokeMethod, null, ScriptControl, new object[] { reString });                //执行当前对象的方法(方法名) InvokeMethod 异步执行某一个方法               return obj.InvokeMember("Eval", BindingFlags.InvokeMethod, null, ScriptControl, new object[] { string.Format("{0}({1})", MethodName, para) }).ToString();//执行结果            }            catch (Exception ex)            {                string ErrorInfo = string.Format("执行JS出现错误:   \r\n 错误描述: {0} \r\n 错误原因: {1} \r\n 错误来源:{2}", ex.Message, ex.InnerException.Message, ex.InnerException.Source);//异常信息                return ErrorInfo;            }        }         /// <summary>        /// 执行js Run方法        /// </summary>        /// <param name="reString">Js代码</param>        /// <param name="para">参数字符串(使用逗号分隔)</param>        /// <param name="MethodName">方法名称</param>        static string RunMethod(string reString, string para, string MethodName)        {            ScriptControlClass sc = new ScriptControlClass();            try            {                sc.UseSafeSubset = true;//大家自行查询下具体代表的含义.                sc.Language = "JScript"; //Asp vbScritp   JScript!= JavaScript                sc.AddCode(reString);                 string[] str = para.Split(',');                object[] obj = new object[str.Length];                for (int i = 0; i < str.Length; i++)                {                    obj[i] = str[i];                }                            return sc.Run(MethodName, obj).ToString(); //执行结果            }            catch (Exception ex)            {                if (sc.Error.Source != null)                {                    string txt = sc.Error.Text == null ? "" : sc.Error.Text;                    string ErrorInfo = string.Format("执行JS出现错误:   \r\n 第{0}行,第{1}列, \r\n 错误描述: {2}:    {3};\r\n 错误Code:{4}", sc.Error.Line.ToString(), sc.Error.Column.ToString(), sc.Error.Source, sc.Error.Description.ToString() + txt, sc.Error.Number.ToString());                   //  ErrorInfo  异常信息                    return txt + ErrorInfo;                }                else                {                   // ex.Message; 异常信息                    return ex.Message;                }            }        }    }}
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